BLOOD RELATIVES (1978, Canada/France, 100m, 18) *** Crime, Mystery, Romance, Thriller dist. Filmcorp Productions Inc.; pr co. Cinévidéo / Filmel / Classic Film Industries; d. Claude Chabrol; w. Sydney Banks, Claude Chabrol (based on the “87th Precinct” novel by Ed McBain); pr. Denis Héroux, Eugène Lépicier; ph. Jean Rabier (Eastmancolor | 1.85:1); m. Pierre Jansen,…